Locking slider for separable fasteners



Nov. 1a, 1941 D. MARINSKY Er y 2,263,393

LOCKING SLIDER FOR SEPARABLE FASTENERS Filed June 21, 1939 BY WQZ.

ATTORNE Patented Nov. 18, 1941 LOCKING SLIDER FOR SEPARABLE FASTENERS Davis Marinsky and Louis B. Morin, Bronx, N. Y.. assignors to Whitehall Patents Corporation, Bronx, N. Y., a corporation of New York Application June 21, 1939, Serial No. 280,275

'10 Claims.

This invention relates to sliders used in coupling and uncoupling the stringers of separable fasteners. More particularly the invention relates to 'the mounting of a laterally swinging and spring actuated lock member and pull in connection with the slider, the spring being tensioned to normally support the element or pull in locked position, the element having a large finger grip portion adapted to be raised against the action of the spring in the manual operation of the slider to open or close the stringers. The novel features of the invention will be best understood from the following description and annexed drawing, in which certain embodiments of the invention are disclosed and in which the separate parts are designated by suitable reference characters in each of the views, and in which:

Fig. 1 is a plan view of a part of a fastener showing one form of slider thereon.

Fig. 2 is an end view of the slider as seen in Fig. 1 showing parts of the stringer tapes in section.

Fig. 3 is a perspective view of the slider detached showing parts in a different position.

Fig. 4 is a view similar to Fig. l showing a modified form of construction and illustrating the slider detached from a fastener.

Fig. 5 is a partial section on the line 5-5 of Fig. 4.

Fig. 6 is a' view similar to Fig. 3 showing another form of construction.

Fig. 7 is-a section on 'the line 'l'l of Fig. 6, and

Fig. 8 is a view similar to Fig. 7 showing parts in a different position.

To indicate the adaptation and use of the in- V vention, parts of two stringers I0, Illa. are shown in Fig. '1 of the drawing with links H, Ila secured to one edge thereof. At I2 is indicated a slider movable along the stringers to couple and uncouple the links as in other devices of this kind.

' The present invention relates to sliders of the locking type and particularly in the provision of locking means which will adapt the slider for all uses in that the-slider may be retained against movement in both directions on the stringer when the locking element employed is in operative position.

As shown in Figs. 1 to 3 inclusive, the top wall 13 of the slider is provided at the wide end portion thereof and over the web M, which joins the top wall with the bottom wall IS, with a bearing l6. Another bearing ll extends outwardly from the top wall in spaced relation to the bearing Hi to receive a long pivot pin or rivet l8 employed to pivotally mount two pull plates I9, 20 in connection with the top wall of a slider. The plate l9 has spaced bearings 2| and the plate 20 spaced bearings 22 through all of which the pin I8 passes, as will clearly appear upon a consideration of Fig. 3 of the drawing.

The plate l8 has on its undersurface a projecting lock element 23, and the plate 20 has a corv respondiug lock element 24. These elements are arranged in staggered relationship to each other as will appear in Fig. 1. so as'to enter recesses between links of opposed stringers. The bearings l1 and one of the bearings 22 are widely spaced apart, and arranged upon the pin I8 intermediate said bearings is a coil spring 25. One end portion of the coil spring 25 engages the plate l9 as seen at 2511, whereas the other end portion engages the plate 20 as seen at' 25b, note Fig. 1. The spring 25 is tensionedto normally support the plates 1 9 and 20 in position upon the top wall 13 with the lock elements 23, 24 projecting through apertures 26 formed in the top wall I3 so as to enter the channel of the slider, 'as is indicated in Fig. 2 of the drawing, to engage the links H, H a of opposed stringers.

The plates l9 and 20 are in the form of what might be termed wings which protrude slightly beyond the edges of. the walls of the slider to facilitate engagement between two fingers of the hand in the operation of grasping and raising the plates l9 and 20 collectively into a position similar to that shown in Fig. 3 of the drawing in the operation of moving the slider longitudinally of the stringers to couple and uncouple the same. It will of course be apparent that the instant that the plates l9 and 20 are released, the same will be automatically returned into the position such as shown in Fig. 2 and automatically lock the slider against movement in either direction on the stringers.

A slight modification of the construction shown in Figs. 1 to 3 is illustrated in Figs. 4 and 5, and this consists primarily in extending the bearings lia, Ila so as to raise the plates Illa, 20a above the upper surface of the top wall l3a of the slider. Instead of providing the lock elements 23, 24 directly upon the plates l9 and 20, a separate lock member 21 is employed having a pair of lock elements 28, 29 arranged in staggered relationship to pass through corresponding aperporting the same in this position. With this construction a spring 3i is employed having ends 3la, 3|b engaging the plates I90, 20a to normally support the same in the full line position shown in Fig. 5, the plates being raised by the fingers of the hand into the dotted line position in the operation of moving the slider longitudinally of the stringers;

In Figs. 6, 7 and 8 of the drawing, another adaptation of the invention is shown wherein a single pull plate 32 is employed instead of the dual plates as shown in the other figures. The plate 32 has spaced bearings 33 arranged upon a pivot pin 34 mounted in spaced bearings 35, and the top wall 36 of the slider has a single aperture 31 for receiving a single lock element 38 on the surface of the plate 32.

Withthe construction shown in the latter figures, a spring 39 is mounted on the pin 34 and has one end 33a secured to the plate 32, and the other end 39b is secured to the top wall 36 of the slider. The spring 39 istensioned to normally support the plate 32 in the position'shown in Fig. 8 of the drawing with the element 33 projecting through the aperture 31 into the channel of the slider. The plate 32 includes a hood portion 32a between the bearings 33 which conceals or at least partially conceals the spring 33 when the plate 32 is in closed or operative position. The fiat surface 40 of the hood 32a in engaging the surface of the top wall 36 will form a stop limiting the movement of the plate 32 in perpendicular position in the operation of moving the slider longitudinally of the stringers.

In the several forms of construction shown, it will be apparent that the bearings are spaced centrally and longitudinally of the slider, and the pivot pin for supporting the pull plates is arranged longitudinally of the slider so that said plates swing transversely of the slider in moving the lock element employed in the operative position. Thecoil spring cooperating with the pull serves to normally maintain the pull in depressed or locked position. The single or double pull .may be readily moved by the fingers of a hand into raised position to disengage the lock element 'or elements, permitting free movement oi'the slider longitudinally of the stringers.

By providing lock elements supported and operated in the manner described, it will appear that a definite bar or key is provided for retaining the slider against movement in either direction on the stringers, thus adapting the slider for conventional uses as well as what is commonly reierred to as reverse locking sliders. In other words, it will appear that any stress or strain upon the lock element in the strain to accidentally or otherwise open the stringers, will not be transmitted directly to the pull plate in a manner which will cause accidental opening of the lock element, as is commonly experienced in pulls mounted to swing 'on pivots arranged trans-- versely oi the slider rather than longitudinally thereof as in the present case.

In the construction shown in Figs. 4 and 5, the free lock member 21 may move automatically into raised position to provide movement of the slider longitudinally of the stringers when the plates Ha, 20a are in raised position: However, when these plates are in their normal lowered position under the tension of the spring 3|, the member 21 will be retained against any accidental displacement.

It-will be apparent that by reason oi the torsion spring employed, the lock plate or plates will be snapped back quickly into operative position when released after the movement of a slider in any direction on the stringers, thus providing a quick and responsive form or locking means. It will further be understood that the finger piece or pull is always maintained in secure position preventing swinging, rattling or other movement thereof, as quite commonly experienced in pulls mounted to swing freely on the slider.

It will of course be apparent that the plate or plates forming the finger piece of the slider may be of any desired shape or contour and fashioned in any manner to fit the fingers of the operator or even to attach other pull devices therewith. For example, an aperture 32a may be provided in the plate 32 for receiving a pull chain or other type of pull, and in this connection, it will appear that the plate would form a lock element. l'gurther, for illustrative purposes, the sliders as shown in the accompanying drawing are of the die cast type to illustrate a simple and yet strong and durable adaptation of the invention. I

It will also appear that in some instances, the locking features need not necessarily be employed, and the tensional mounting or "spring actuated movement of the pull plate or plates may be provided simply for retaining the plates in what might be termed a collapsible or inoperative position in producing neat and finished appearanees of the slider. It will also be apparent that-in the locking type of sliders, my invention is not limited to any particular location of the lock element or elements employed when used as independent elements as taught in Figs. 4 and 5 or as part of a swinging plate or plates as in the other figures. v

Having fu ly described our invention, what we claim as new and desire to secure by Letters Patent, is:

1. A slider for separable fasteners of the class described, said slider having spaced walls form- 'ing a channeled body, a pull, means arranged longitudinally of one wall of the slider forming a. pivotal support for said pull to swing in a direction transversely to the longitudinal plane of the slider, a coil spring at the pivot end oLthe 2. A slider for separable fasteners of the class described, said slider having spaced walls forming a channeled body, a pull, means arranged longitudinally of one wall of the slider forming a pivotal support for said pull to swing in a directiontransversely to the longitudinal plane of the slider, a coil spring at the pivot end of the pull, one end of said spring cooperating/with said pull to tensionally support the same in substantially horizontal position upon the slider wall, said pull being manually raised against the action of said springin the operation. of grasping the pull to operate said slider, and a loci: element on the pull extending into the channel of the slider when the pull is in horizontal position.

3. A slider for separable fasteners oi the class described, said slider having spaced walls forming a channeled body, a'pulL' means arranged longitudinally of one wall 01- the slider forming a pivotal support for said pull to swing in a di-. rection transversely to the longitudinal plane oi the slider, a coil spring at the pivot end of the pull, one end of said spring cooperating with said pull to tensionally support the same in substantially horizontal position upon the slider wall, said pull being manually raised against the action of said spring in the operation of grasping the pull to operate said slider, a lock element on.

the pull extending into the channel of the slider when the pull is in horizontal I position, and means substantially concealing the spring when the pull is in horizontal position.

4. A slider for separable fasteners of the class described, saidslider having spaced walls forming a, channeled body, a pull, means arranged longitudinally of one wall of the sliderforming a pivotal support for said pull to swing in a direction transversely to the longitudinal plane of the slider, a coil spring at the pivot end of the pull, one end of said spring cooperating with said pull to tensionally support the same in substanytially horizontal position upon the slider wall, said pull being manually raised against the action of said spring in the operation of grasping the pull to operate said slider, and said pull com- 7 prising independently swingable plates normally ments being-arranged upon and movable with said plates.

7. A slider of the,class described comprising spaced walls joined by a connecting web at one end thereof, a pair of bearings spaced longitudinally of the slider, a pull, means extending longitudinally of the slider between said bearings forming a pivotal mounting ofthe pull in connection with said bearings to swing the pull transversely of the slider, a coil spring arranged on said means, said spring having projecting ends, one end engaging the slider wall and the other engaging the pull, said spring being tension'ed to normally support the pull substantially flatly and horizontally upon said wall of the slider, and said pull being moved into substantially perpendicular position on the slider wall against the action of said spring in grasping the pull to operate the slider.

8. A slider of the class described comprising spaced walls joined by a connecting web at one rection transversely to the longitudinal plane of the slider, acoil spring at the pivot end of the pull, one end of said spring cooperating with said vpull to tensionally support the same in substantially horizontal position uponthe slider wall,

said pull being manually raised against the ac-,

tion of said spring in the operation of grasping the pull to operate said slider, said pull 'comprising independently swingable plates normally extending to opposite sides of the slider 'and brought together perpendicularly of the slider in grasping the same by the'hand, and spaced lock elements supported in position extending into the channel of the slider when the plates of the pull are in horizontal position.

6. A slider for separable fasteners-of the class described, said slider having spaced walls forming a channeled body, a pull, means arranged longitudinally of one wall of the slider forming a pivotal support for said pull to swing in a direction transversely to the longitudinal plane of the slider, a coil spring at the pivot end of the pull, one end of said spring cooperating with said pull to tensionally support the same in substantially horizontal position upon the slider wall, said pull being manually raised against the action of said spring in the operation of grasping.

the pull to operate said slider, said pull comprising independently swingable plates normally extending to opposite sides of the slider and brought together perpendicularly of the slider in grasping the same by the hand, spaced lock elements supported in position extending into the channel of the slider when the plates of the pull are in horizontal position, and said eleend thereof, a pair of bearings spaced longitudinally of the slider, a pull, means extending longitudinally of the slider between said bearings forming a pivotal mounting of the pull in con: nection with said hearings to swing the pull transversely of the slider, a coil spring arranged on said means, said spring having projecting ends, one end engaging the slider wall and the other engaging the pull, said spring being tensioned to normally support the pull substantially flatly and horizontally upon said wall of the slider, said pull being moved into substantially perpendicular position on the slider wall against the action of said spring in grasping the pull to operate the slider, said wall of the slider being apertured, a lock element movable in the aperture'of said wall and normally projected into the slider and supported in said projected position by said pull.

- 9. A slider for slide fasteners comprising spaced walls joined by a connecting web at one end, a pull, means pivoting the pull on one of said walls to swing transversely of the pull on an axis extending lengthwise of the slider to extend the pull in the direction of one side of the slider with the pivot end of the pull arranged centrally and longitudinally of the slider wall, and spring means between the pull and slider wall normally supporting the pull substantially flatly against the slider wall,while providing upward swinging movement of the pullinto a substantially perpendicular position against the action of said spring means.

10. A slider for slide fasteners comprising spaced walls joined by a connecting web at one end, a pair of pulls, means centrally and longitudinally of one of said walls forming a common pivot for both pulls, spring means engaging both of said pulls to normally support the same upon the slider wall with one pull at one side of the pivot and the other at the opposite side thereof, and each of said pulls being adapted to be swung on the pivot into substantially perpendicular position to the slider wall in grasping the pulls for operation of the slider.

' DAVIS MARINSKY. LOUIS H. MORIN. 

